Area Code 905 at a Glance
| Area code | 905 |
| Region | Mississauga, ON |
| Country | Canada |
| Primary timezone | America/Toronto |
| Dialing format | +1 (905) NXX-XXXX |
Cities and Places Using Area Code 905
Based on prefix-level carrier data, area code 905 covers places including:
- Ontario
- Mississauga, ON
- Hamilton, ON
- Brampton, ON
- Oakville, ON
- Oshawa, ON
- St. Catharines, ON
- Markham, ON
- Newmarket, ON
- Burlington, ON
- Richmond Hill, ON
- Ajax, ON
Frequently Asked Questions
Where is area code 905?
Area code 905 serves Mississauga, ON, Canada.
Who is calling me from area code 905?
A call from area code 905 most likely originates from Mississauga, ON, but caller ID can be spoofed. If an unknown caller asks for personal or payment information, hang up and call the organization back on its official number.
How do I dial a 905 number?
Within North America: dial 1-905 followed by the 7-digit number. From abroad: your international prefix (like 00 or +), then 1 905 and the number.